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    Igor,<br>
      without knowing what kind of warnings you are getting it isn't
    really possible to guess what might be going on. If you are not able
    to interpret the warnings then I would recommend that you send the
    project and supporting files on to your distributor for assistance.<br>
    kind regards,<br>
     David<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 3/24/2015 4:27 PM, Igor Seso wrote:<br>
    </div>
    <blockquote
      cite="mid:838274368.839233.1427232462650.JavaMail.yahoo@mail.yahoo.com"
      type="cite">
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              id="yui_3_16_0_1_1427231173387_11854">
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                    style="color:#000;background-color:#fff;font-family:HelveticaNeue,
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                    id="yiv0256044417yui_3_16_0_1_1427231173387_5535">
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr">Hi,</div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr"><br>
                    </div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr">I'm modelling underfloor heating system.
                      The building has three floors, but it has
                      underfloor heating only on the first two floors
                      and the third is unheated. I made the active
                      layers and in the first zone I have ground
                      floor-boundary(with the active layer), on the
                      second floor I made the  ground floor(with active
                      layer) adjacent to the first floor zone and on the
                      third floor I made ground floor(without active
                      layer)   adjacent to the second floor zone , the
                      roof as external surface. (All of the walls are
                      made as external surfaces)</div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr">First I tried just to get the required
                      heating energy for the zones but I get warnings -
                      when I remove the active layers then is possible
                      to calculate the required heating energy.</div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr"><br>
                    </div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr"> Did I made some mistake with the
                      adjacent zones or could be something else, any
                      idea?</div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr"><br>
                    </div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr">Best Regards</div>
                    <div
                      id="yiv0256044417yui_3_16_0_1_1427231173387_2419"
                      dir="ltr">Igor </div>
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      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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